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Refs #33355 -- Fixed Trunc() with years < 1000 on SQLite. 

Thanks to Nick Pope for spotting the bug in Code Review.

Co-Authored-By: Nick Pope <nick@nickpope.me.uk>
This commit is contained in:
Adam Johnson 2021-12-11 18:21:39 +00:00 committed by Mariusz Felisiak
parent c66ecc5568
commit 5111b636d9
3 changed files with 32 additions and 17 deletions
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5
django/db/backends/oracle/features.py
View File

@ -77,6 +77,11 @@ class DatabaseFeatures(BaseDatabaseFeatures):
'db_functions.text.test_sha224.SHA224Tests.test_basic',
'db_functions.text.test_sha224.SHA224Tests.test_transform',
},
"Oracle doesn't correctly calculate ISO 8601 week numbering before "
"1583 (the Gregorian calendar was introduced in 1582).": {
'db_functions.datetime.test_extract_trunc.DateFunctionTests.test_trunc_week_before_1000',
'db_functions.datetime.test_extract_trunc.DateFunctionWithTimeZoneTests.test_trunc_week_before_1000',
},
"Oracle doesn't support bitwise XOR.": {
'expressions.tests.ExpressionOperatorTests.test_lefthand_bitwise_xor',
'expressions.tests.ExpressionOperatorTests.test_lefthand_bitwise_xor_null',

26
django/db/backends/sqlite3/base.py
View File

@ -451,17 +451,17 @@ def _sqlite_date_trunc(lookup_type, dt, tzname, conn_tzname):
if dt is None:
return None
if lookup_type == 'year':
return "%i-01-01" % dt.year
return '%04i-01-01' % dt.year
elif lookup_type == 'quarter':
month_in_quarter = dt.month - (dt.month - 1) % 3
return '%i-%02i-01' % (dt.year, month_in_quarter)
return '%04i-%02i-01' % (dt.year, month_in_quarter)
elif lookup_type == 'month':
return "%i-%02i-01" % (dt.year, dt.month)
return '%04i-%02i-01' % (dt.year, dt.month)
elif lookup_type == 'week':
dt = dt - datetime.timedelta(days=dt.weekday())
return "%i-%02i-%02i" % (dt.year, dt.month, dt.day)
return '%04i-%02i-%02i' % (dt.year, dt.month, dt.day)
elif lookup_type == 'day':
return "%i-%02i-%02i" % (dt.year, dt.month, dt.day)
return '%04i-%02i-%02i' % (dt.year, dt.month, dt.day)
def _sqlite_time_trunc(lookup_type, dt, tzname, conn_tzname):
@ -520,23 +520,23 @@ def _sqlite_datetime_trunc(lookup_type, dt, tzname, conn_tzname):
if dt is None:
return None
if lookup_type == 'year':
return "%i-01-01 00:00:00" % dt.year
return '%04i-01-01 00:00:00' % dt.year
elif lookup_type == 'quarter':
month_in_quarter = dt.month - (dt.month - 1) % 3
return '%i-%02i-01 00:00:00' % (dt.year, month_in_quarter)
return '%04i-%02i-01 00:00:00' % (dt.year, month_in_quarter)
elif lookup_type == 'month':
return "%i-%02i-01 00:00:00" % (dt.year, dt.month)
return '%04i-%02i-01 00:00:00' % (dt.year, dt.month)
elif lookup_type == 'week':
dt = dt - datetime.timedelta(days=dt.weekday())
return "%i-%02i-%02i 00:00:00" % (dt.year, dt.month, dt.day)
return '%04i-%02i-%02i 00:00:00' % (dt.year, dt.month, dt.day)
elif lookup_type == 'day':
return "%i-%02i-%02i 00:00:00" % (dt.year, dt.month, dt.day)
return '%04i-%02i-%02i 00:00:00' % (dt.year, dt.month, dt.day)
elif lookup_type == 'hour':
return "%i-%02i-%02i %02i:00:00" % (dt.year, dt.month, dt.day, dt.hour)
return '%04i-%02i-%02i %02i:00:00' % (dt.year, dt.month, dt.day, dt.hour)
elif lookup_type == 'minute':
return "%i-%02i-%02i %02i:%02i:00" % (dt.year, dt.month, dt.day, dt.hour, dt.minute)
return '%04i-%02i-%02i %02i:%02i:00' % (dt.year, dt.month, dt.day, dt.hour, dt.minute)
elif lookup_type == 'second':
return "%i-%02i-%02i %02i:%02i:%02i" % (dt.year, dt.month, dt.day, dt.hour, dt.minute, dt.second)
return '%04i-%02i-%02i %02i:%02i:%02i' % (dt.year, dt.month, dt.day, dt.hour, dt.minute, dt.second)
def _sqlite_time_extract(lookup_type, dt):

18
tests/db_functions/datetime/test_extract_trunc.py
View File

@ -653,7 +653,7 @@ class DateFunctionTests(TestCase):
self.assertEqual(DTModel.objects.filter(start_datetime__second=ExtractSecond('start_datetime')).count(), 2)
def test_trunc_func(self):
start_datetime = datetime(2015, 6, 15, 14, 30, 50, 321)
start_datetime = datetime(999, 6, 15, 14, 30, 50, 321)
end_datetime = datetime(2016, 6, 15, 14, 10, 50, 123)
if settings.USE_TZ:
start_datetime = timezone.make_aware(start_datetime)
@ -730,9 +730,7 @@ class DateFunctionTests(TestCase):
qs = DTModel.objects.filter(start_datetime__date=Trunc('start_datetime', 'day', output_field=DateField()))
self.assertEqual(qs.count(), 2)
def test_trunc_week(self):
start_datetime = datetime(2015, 6, 15, 14, 30, 50, 321)
end_datetime = datetime(2016, 6, 15, 14, 10, 50, 123)
def _test_trunc_week(self, start_datetime, end_datetime):
if settings.USE_TZ:
start_datetime = timezone.make_aware(start_datetime)
end_datetime = timezone.make_aware(end_datetime)
@ -760,6 +758,18 @@ class DateFunctionTests(TestCase):
lambda m: (m.start_datetime, m.truncated),
)
def test_trunc_week(self):
self._test_trunc_week(
start_datetime=datetime(2015, 6, 15, 14, 30, 50, 321),
end_datetime=datetime(2016, 6, 15, 14, 10, 50, 123),
)
def test_trunc_week_before_1000(self):
self._test_trunc_week(
start_datetime=datetime(999, 6, 15, 14, 30, 50, 321),
end_datetime=datetime(2016, 6, 15, 14, 10, 50, 123),
)
def test_trunc_invalid_arguments(self):
msg = 'output_field must be either DateField, TimeField, or DateTimeField'
with self.assertRaisesMessage(ValueError, msg):